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Finding the Fourth Proportional to 383,811.15, 575,470.36 and 159,326.54

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Solution

The fourth proportional to 383,811.15, 575,470.36 and 159,326.54 is: 238,887.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,811.15 : 575,470.36 = 159,326.54 : x
  2. Step 2: Convert to fraction form
    383,811.15/575,470.36 = 159,326.54/x
  3. Step 3: Cross multiply
    383,811.15x = 575,470.36 × 159,326.54
  4. Step 4: Simplify right side
    383,811.15x = 91,687,701,331.35
  5. Step 5: Solve for x
    x = 91,687,701,331.35/383,811.15
  6. Step 6: Final answer
    x = 238,887.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.